The image of the marriage is on ancestry
Marriages May 1639
''30 John Rigby of Standish P'sh and Isabelle Prescott of this''
Wigan Archives Services; Wigan, England; Film Number: 1; Reference Numbers: D/P24/1/1, Wigan All Saints parish register image 159.
There is also a text only record of the marriage licence.
Text: 22 May [1639] ''John Rigby of Gathurst, Parish of Standish, Lanc., and Isabel Prescot, Parish of Wigan, Lanc., Spinster. Bondsman, Edward R''
Book Marton Marriages. Addenda Et Corrigenda. (Marriage)
Collection:Cheshire: Chester - Marriage Licenses Granted within the Archdeaconry of Chester in the Diocese of Chester, 1639-1644
(Note there was another Isabelle Prescott who married a Humfrey Crochley in Wigan in 1633. There is also the death of an Isabelle Rigby wife of John in West Haughton, Deane, just 10 miles away in 1702 but this isn't an uncommon name)
There was a John Rigby of Gathurst signing documents in the 1660s.
Gathurst is in Shevington and we find that Richard Prescott bought land from the Digby family in 1595 so a marriage alliance between these families is possible
The Vic County History "The descent of the Rigby manor or estate in Shevington is uncertain. A settlement of lands in Shevington and Wigan was in 1592 made by Edward Rigby and Dorothy his wife; Pal. of Lanc. Feet of F. bdle. 54, m. 59. Three years later Richard Prescot purchased a messuage and land in the township from Robert Rigby, John his son and Ellen wife of John; ibid. bdle. 57, m. 109. Edward Rigby died in 1635 holding a messuage and land in Shevington of Lord Morley and Mounteagle as of the honour of Hornby; his son and heir John was twenty-seven years old; Duchy of Lanc. Inq. p.m. xxvii, no. 28. From this it would seem that the Mounteagle manor had not been sold. John Rigby of Shevington, 'a wellaffected Protestant,' occurs in 1651; Cal. Com. for Comp. iv, 2757."
'Townships: Shevington', in A History of the County of Lancaster: Volume 6, ed. William Farrer and J Brownbill (London, 1911), pp. 199-203. British History Online http://www.british-history.ac.uk/vch/lancs/vol6/pp199-203 [accessed 17 December 2016].
And probably irrelevant but interesting is there is a school in Gathurst Road Wigan named St John Rigby school. Another John Rigby was a Catholic martyr in 1600. He appears to have come from a very wealthy Rigby family from Harrock Hall in the Wigan area . I would not be surprised to find the above Rigbys are a cadet branch (edited kept writing Digby not Rigby!)
Edit
I can't see that this John Rigby is likely to be a John Rigby born in Devon. This lot were firmly ensconced in the Wigan area ie at the other end of the country (note, today at least the village is Buckland Brewer, Devon not Buckland, Brower, Devon) .There were a lot of Lancashire Rigbys but there was certainly a John still 'of Gathurst' after this couple were said to have left.